Distilling apparatus.



.A Patented May 20, |902. s; MAKE. DISTILLING APPARATUS.

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srncrricar'ronfoming part of Letters-Patent. No. '700.373, lated May 20,1902. d

` replication ned rime 4.11901. sensing. 63.055. (Numa-,1.) 1

To all whom, t may' concern,.-

Be it known that I, JOHN S. ROAKE, a citi- -zen ofthe United States,residing in thecity of`l New York,borugh of Brooklyn, in the county 5 and State of New York, have invented a certain new and useful Improvement in Distil- .ling Apparatus, of which the following is a specification. The invention relates to the distillation of llol wood in the production of turpentine and other'distillates, and more particularly to means-for introducing alkali for the purpose of facilitating the removal of phenols, pyroligenous acid, and other products carried over in the turpentine-vapor from the retort.

The object ot the invention is to provide means whereby the'alkali may be so intro'- duced'as tolmingle very intimatelywith the products of distillation under conditions fazo vorable to the'combination of the undesirable products, and thusv produce turpentine of a '.high grade of purity.

The invention consists of an atomizer comprising a steam-jet inclosed in a suitably- 2 5 formed chamber to which the alkaline solution is admitted and bythe action of the jet is driven in the form of spray directly into the vapor before the latter reaches the condenser. The atomizer is applied to thevapor-pipe'at 3o any convenient point, but preferably to a por! tion in which the direction of the jet of spray Ashall be in the direction of thefilow of vapor through the pipe, thus increasing -the rapidity of the iow toward the condenser. In the most complete form of the invention I provide a4 second inlet to the atonnizer7 throughwhich air or other material in gaseous or liquid form may be admitted as may be found necessary or desirable.

4o The accompanying drawings form a part of this specicatio and show the invention as I have carriedit out. K

Figure l is a side elevationshowing the atomizer with so Inuch of thedistilling apparatus as is necessary in showing its operation.

Fig. 2 is a vertical section, partly inside elevation, showing the atomizer and its immedin ately-connected parts on a larger scale.

Similar letters of reference indicate the 5o same parts in both figures.`

and adapted to conveyv the turpentine-Vapor to a worm A2, in which'it is condensed. i The resulting liquid flows througha,pipeA2, S5

equipped with suitable valves,` to a trap A4, from which'it Qws to the receptacle B.

lA'is a pipe leading fronraretort (not shown) v the casing M is tapered and when in position.`

axial line coincidingwithtlie azialline ofthe extension'AG. Onopposite sides of the casing M4,through which extends a pipe N,controlled bya valve N2 and bringing steam underpressure from a boiler. (Not represented.) The lower end ofthe pipe is tapered tojform a jetnozzle N, so proportioned and located rela-f'. 'i tively to the taperedend of the casing M as to l f serve in amanner analogous tovan injector.`

In thevboss M2 is screwed a pipe L, controlledl .p bya valve L and connected to an'elevated tank L2, containing an alkaline solution, preferably lime-water, and adapted to supply the i So v latter by gravity to the interior of the casing lM in any desired quantities to "be, struck by thestearn issuingfrom thejetNfandatornized. ApipevK, controlled by `a"valve"-K, is con-v nectedtothe opposite bossM3 and is provided with an open funnel K2, adapted to allow air to enter the casing M and' mix with the Vapor when required orto allow the introduction of materialin liquid form poured into casing,`as will be understood. T he atomized isolution is projected downward in thefextensio'n A6 in a spray at high temperature due to the open funnel and flowing by gravity to the the steam and by the action of theblast is l thoroughly mixed with the vapor. The valkali is thus favorably presented to allow any Vportions of the vapor having an aftinityrfor alkali to combine easily therewith. In traveling through the worm A2 the whole is condensed and escapes through the pipe A3 and' trap A4 t-o the receptacle B, in which the turpentine and the water of condensation, with any contained impurities combined with the lime, are received and allowed to separate by gravity, as usual. The waterin the receptacle Bis strongly impregnated with lime, and as the pipe A3 extends below the level the liquid turpentine rises through it, and is thus again given an opportunity to free itself of any remaining pyroligneous acid or other undesirable constituent having an afinity for the linie. Strong alkaline solution may be supplied from time to time to the receptacle in addition to that flowing from the worm.

The supply of steam injected by the atomizer must be Carefully regulated not to exceed the capacity of the Worm to condense it rapidly, and thus to avoid pressure in the apparatus, which would tend to retard the iiow of vapor from the retort. The addition of the lime-water in the required small quantities in the form of a hot spray projected in the direction of the iow serves to increase the latter and hasten the distilling operation in addition to improving the quality of the product by reason of the favorable conditions offered for the combination with the alkali of any undesirable products carried over with the turpentine-vapor.

Modifications may be made in the forms and proportions within wide limits, and parts of the invention may be used without the whole. I can omit the pipe K and its provisions for introducing air or other material to the vapor-pipe. The position of the atomizenmay be changed to introduce the solution at any desired portion of the vapor-pipe.

Although I have described the material as au alkaline solution and the product sought turpentine, it will be understood that any solution may be similarly introduced in the distillation of any product to which such addition may be found to be advantageous.

It will be understood that those portions Aand equipments of the distilling apparatus not shown or described may be of any ordinary or approved construction and arrangement.

I claim- In an apparatus of the character described, a condenser-coil, a pipe'leading from a retort, an elbow connecting said pipe and the coil, a boss on said elbow, a tapered casing detachably mounted on said boss, a jet-nozzle extending into said casing and connected with a source of steam-supply, a pipe connecting said casingwith an elevated tank, and a pipo also connected to said casing` and with an open funnel, all substantially as and for thc purposes specilied.

In testimony that I claim the invention above set forth I alix my signature in presence ol' two witnesses.

JOHN S. ROAKE.

' XVitnesses:

CHARLES R. SEARLE, JOHN GAREY. 

